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Перегляд Condensed Matter Physics, 2018, № 3 за назвою

Репозиторій DSpace/Manakin

Перегляд Condensed Matter Physics, 2018, № 3 за назвою

Сортувати за: Порядок: Результатів:

  • Geometric measure of mixing of quantum state 
    Laba, H.P.; Tkachuk, V.M. (Condensed Matter Physics, 2018)
    We define the geometric measure of mixing of quantum state as a minimal Hilbert-Schmidt distance between the mixed state and a set of pure states. An explicit expression for the geometric measure is obtained. It is interesting ...
  • Honorary issue dedicated to the 80th anniversary of Professor Ihor Stasyuk 
    Freericks, J.K.; Shvaika, A.M. (Condensed Matter Physics, 2018)
    This special issue of the “Condensed Matter Physics” journal is dedicated to Professor Ihor Stasyuk, a prominent scientist and lecturer who celebrates his 80th birthday on September 23, 2018. The articles in this collections ...
  • Impurity induced broadening of Drude peak in strained graphene 
    Shubnyi, V.O.; Sharapov, S.G.; S.G., Y.V. (Condensed Matter Physics, 2018)
    The recent experimental study of the far-infrared transmission spectroscopy of monolayer graphene has shown that the Drude peak width increases by more than 10% per 1% of applied mechanical strain, while the Drude weight ...
  • Interpreting pulse-shape effects in pump-probe spectroscopies 
    Shvaika, A.M.; Matveev, O.P.; Devereaux, T.P.; Freericks, J.K. (Condensed Matter Physics, 2018)
    The effect of the pulse-shape on pump-probe spectroscopies is examined for the simplest model of noninteracting fermions on an infinite-dimensional hypercubic lattice. The probe-modified density of states follows the ...
  • On the spatially periodic ordering in the system of electrons above the surface of liquid helium in an external electric field 
    Lytvynenko, D.M.; Slyusarenko, Yu.V.; Kirdin, A.I. (Condensed Matter Physics, 2018)
    A theory of equilibrium states of electrons above a liquid helium surface in the presence of an external clamping field is built based on the first principles of quantum statistics for the system of many identical ...
  • On the theory of high-Tc superconductivity of doped cuprates 
    Pogorelov, Y.G.; Loktev, V.M. (Condensed Matter Physics, 2018)
    A theoretical analysis is presented on possible effects of disorder by dopants in high-temperature superconducting cuprate perovskites, to define their basic spectra of spin and electronic excitations, and the subsequent ...
  • The composite operator method route to the 2D Hubbard model and the cuprates 
    A. Di Ciolo; Avella, A. (Condensed Matter Physics, 2018)
    In this review paper, we illustrate a possible route to obtain a reliable solution of the 2D Hubbard model and an explanation for some of the unconventional behaviours of underdoped high-Tc cuprate superconductors within ...
  • The spin-1/2 Heisenberg ferromagnet on the pyrochlore lattice: A Green's function study 
    Hutak, T.; Müller, P; Richter, J.; Krokhmalskii, T.; Derzhko, O. (Condensed Matter Physics, 2018)
    We consider the pyrochlore-lattice quantum Heisenberg ferromagnet and discuss the properties of this spin model at arbitrary temperatures. To this end, we use the Green’s function technique within the random-phase (or ...
  • Two-orbital Hubbard model vs spin S=1 Heisenberg model: studies on clusters 
    Lemański, R.; Matysiak, J. (Condensed Matter Physics, 2018)
    We perform exact numeric calculations for the two-orbital Hubbard model on the four-site cluster. In the limit of large on-site coupling the model becomes equivalent to the spin S “ 1 Heisenberg model. By comparing energy ...

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